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NEST <br /> EAST <br /> 5800 5800 <br /> 5750 5750 <br /> 5700 <br /> 5700 <br /> 5650 \\ 5650 <br /> Benton <br /> ``:•::> <br /> Formation <br /> • <br /> HS H 9 H3 <br /> mined from <br /> underground <br /> LEGEND SECTION LOOKING NORTH FIGURE 5 <br /> EDS. S. Scale: 1" = 50' HOGBACK MINE <br /> Dakota Formation TYPICAL VERTICAL SECTION <br /> ® Clay JJJ No Vertical Exaggeration ROBINSON BRICK COAJPANY <br /> f 5/16/83 JTH <br /> sr <br />